Display panel with pixel circuit having a plurality of light-emitting elements and driving method thereof

1. A pixel circuit, comprising:

a sharing unit, N light-emitting control units and N first transistors, wherein N is positive integer greater than or equal to 2; and, wherein

the N light-emitting control units are configured such that: an output terminal of each of the N light-emitting control units is electrically connected to a light-emitting element; and a control terminal of each of the N light-emitting control units is configured to be electrically connected to a respective one of N control signal lines; and

the sharing unit is configured to drive, through each of the light-emitting control units, the light-emitting element electrically connected to the light-emitting control unit;

wherein the sharing unit comprises a second transistor, a third transistor, a fourth transistor, a first capacitor and a second capacitor;

an input terminal of the second transistor is configured to be electrically connected to a power signal line, a control terminal of the second transistor is electrically connected to a first terminal of the first capacitor, and an output terminal of the second transistor is electrically connected to an input terminal of each of the N light-emitting control units;

an input terminal of each of the N first transistors is configured to be electrically connected to a reference signal line, an output terminal of each of the N first transistors is electrically connected to a second terminal of the first capacitor, a control terminal of each of the N first transistors is configured to be electrically connected to a respective one of the N control signal lines;

an input terminal of the fourth transistor is configured to be electrically connected to a data line, an output terminal of the fourth transistor is directly electrically connected to the second terminal of the first capacitor, a control terminal of the fourth transistor is configured to be electrically connected to a scan line; and

an input terminal of the third transistor is electrically connected to an output terminal of the second transistor, an output terminal of the third transistor is electrically connected to the first terminal of the first capacitor and a first terminal of the second capacitor, and a control terminal of the third transistor is configured to be electrically connected to the scan line and a second terminal of the second capacitor.

2. The pixel circuit of claim 1 , wherein,

each of the N light-emitting control units comprises a fifth transistor, and the light-emitting element is a light-emitting diode; wherein

an output terminal of the fifth transistor is configured to be electrically connected to an anode of the light-emitting diode, and a control terminal of the fifth transistors is configured to be electrically connected to a corresponding control signal line; a cathode of the light-emitting diode is electrically connected to the ground.

3. The pixel circuit of claim 2 , wherein,

the first transistor, the second transistor, the third transistor, the fourth transistor and the fifth transistors have an identical channel type.

4. A method, for driving the pixel circuit according to claim 2 , comprising

repeatedly performing a writing and compensate step and a light-emitting step in sequence until the N light-emitting diodes emit light one by one; and, wherein

in the writing and compensate step, under the control of a scan signal of the scan line, the fourth transistor and the third transistor are turned on, so that the data line inputs the data signal to the second terminal of the first capacitor, the second capacitor pulls down the potential of the first terminal of the first capacitor, the second transistor is turned on, and the power signal line inputs the power supply, and the potential of the first terminal of the first capacitor increases until the second transistor is turn off; and

in the light-emitting step, under the control of an input voltage of the control signal line, the first transistor and the fifth transistor electrically connected to the control signal line are turned on, so that the reference signal line inputs the reference voltage to the second terminal of the first capacitor, and the second transistor is turned on, the light-emitting diode electrically connected to the fifth transistor emits light.

5. A display panel, comprising:

a plurality of the pixel circuits and a plurality of light-emitting elements; and, wherein

the plurality of light-emitting elements are arranged in an array, and N light-emitting elements in a row of the array share one of the plurality of the pixel circuits, wherein, each of the plurality of the pixel circuits comprises a sharing unit, N light-emitting control units and N first transistors, wherein N is positive integer greater than or equal to 2, and wherein

an output terminal of each of the N light-emitting control units is electrically connected to a light-emitting element; and a control terminal of each of the N light-emitting control units is configured to be electrically connected to a respective one of N control signal lines; and

the sharing unit is configured to drive, through each of the N light-emitting control units, the light-emitting element electrically connected to the light-emitting control unit;

wherein the sharing unit comprises a second transistor, a third transistor, a fourth transistor, a first capacitor and a second capacitor;

an input terminal of the second transistor is configured to be electrically connected to a power signal line, a control terminal of the second transistor is electrically connected to a first terminal of the first capacitor, and an output terminal of the second transistor is electrically connected to an input terminal of each of the N light-emitting control units;

an input terminal of each of the N first transistors is configured to be electrically connected to a reference signal line, an output terminal of each of the N first transistors is electrically connected to a second terminal of the first capacitor, a control terminal of each of the N first transistors is configured to be electrically connected to a respective one of the N control signal lines;

an input terminal of the fourth transistor is configured to be electrically connected to a data line, an output terminal of the fourth transistor is directly electrically connected to the second terminal of the first capacitor, a control terminal of the fourth transistor is configured to be electrically connected to a scan line; and

an input terminal of the third transistor is electrically connected to an output terminal of the second transistor, an output terminal of the third transistor is electrically connected to the first terminal of the first capacitor and a first terminal of the second capacitor, and a control terminal of the third transistor is configured to be electrically connected to the scan line and a second terminal of the second capacitor.

6. The display panel of claim 5 , wherein

each of the N light-emitting control units comprises a fifth transistor, and the light-emitting element is a light-emitting diode; and, wherein

an output terminal of the fifth transistor is electrically connected to an anode of the light-emitting diode, and a control terminal of the fifth transistors is configured to be electrically connected to a corresponding control signal line; a cathode of the light-emitting diode is electrically connected to the ground.

7. The display panel of claim 6 , wherein

the first transistor, the second transistor, the third transistor, the fourth transistor and the fifth transistors have an identical channel type.